Home / 77,103.36-115,576.26-43,753

Finding the Fourth Proportional to 77,103.36, 115,576.26 and 43,753

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Solution

The fourth proportional to 77,103.36, 115,576.26 and 43,753 is: 65,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,103.36 : 115,576.26 = 43,753 : x
  2. Step 2: Convert to fraction form
    77,103.36/115,576.26 = 43,753/x
  3. Step 3: Cross multiply
    77,103.36x = 115,576.26 × 43,753
  4. Step 4: Simplify right side
    77,103.36x = 5,056,808,103.78
  5. Step 5: Solve for x
    x = 5,056,808,103.78/77,103.36
  6. Step 6: Final answer
    x = 65,584.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.